CN112829724B

CN112829724B - Support device and construction equipment

Info

Publication number: CN112829724B
Application number: CN202110068234.XA
Authority: CN
Inventors: 周俊杰; 黄子灏; 裴蓓蓓; 沈健; 蔡韬
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2023-01-10
Anticipated expiration: 2041-01-19
Also published as: CN112829724A

Abstract

The invention relates to the technical field of construction machinery, and discloses a supporting device and construction equipment. The supporting device is used for supporting the movable chassis during parking and comprises a supporting arm and a driving mechanism, wherein the supporting arm comprises a first arm and a second arm, the first end of the first arm is hinged to the movable chassis, the second end of the first arm is connected with the second arm, the second arm is used for being abutted to the ground during parking, and the driving mechanism can drive the first arm to rotate around the first end of the first arm so that the supporting arm is unfolded and supported on the ground or folded and separated from the ground. The supporting device can stably support the moving chassis, and has the advantages of low cost, high efficiency of the supporting process and small occupied space. The building equipment provided by the invention can be stably supported during parking by arranging the supporting device, and has the advantages of high supporting action efficiency, low overall cost and small occupied space.

Description

Support device and construction equipment

Technical Field

The invention relates to the technical field of construction machinery, in particular to a supporting device and construction equipment.

Background

With the continuous development of construction machines, construction equipment is more and more widely applied. The construction equipment generally comprises a movable chassis and an actuating mechanism arranged on the movable chassis, and in the actual operation process, vibration caused by the actuating mechanism during operation is difficult to overcome after the movable chassis is parked, so that a supporting structure needs to be added to the movable chassis, the supporting structure is lifted and avoided when the movable chassis moves, and the supporting structure is lowered and supported on the ground after the movable chassis is parked, so that the stability of parking of the movable chassis is ensured.

In order to enable the supporting structure to support the moving chassis more stably, a supporting point of the supporting structure usually extends out of the moving chassis for a certain distance and then descends to be supported on the ground.

Therefore, it is desirable to provide a supporting device and a construction equipment to solve the above problems.

Disclosure of Invention

The first purpose of the present invention is to provide a supporting device, which can stably support a moving chassis, and has the advantages of low cost, high efficiency of the supporting process, and small occupied space.

The second object of the present invention is to provide a construction equipment, which can stably support in parking by providing the above-mentioned support device, and has high support operation efficiency, low overall cost and small occupied space.

In order to achieve the purpose, the invention adopts the following technical scheme:

a supporting device is used for supporting a moving chassis during parking and comprises a supporting arm and a driving assembly, wherein the supporting arm comprises a first arm and a second arm, the first end of the first arm is hinged to the moving chassis, the second end of the first arm is connected with the second arm, the second arm is used for being abutted to the ground during parking, and the driving assembly can drive the first arm to rotate around the first end of the first arm, so that the supporting arm is unfolded and supported on the ground, or is folded and leaves the ground.

According to the supporting device, the driving assembly drives the first arm to rotate relative to the movable chassis and drives the second arm to descend (or ascend) in a vertical plane while extending out of (or approaching) the movable chassis in a horizontal plane where the movable chassis is located, so that the supporting arm is unfolded to be supported on the ground or folded and separated from the ground. The telescopic motion and the lifting motion of the supporting arm are carried out synchronously, so that the efficiency is high; and the telescopic movement and the lifting movement are driven by one driving component, so that the structure is simple, the cost is low, and the occupied space is small.

As an optional scheme, a first end of the first arm is hinged to the movable chassis through a first hinge shaft, a second end of the first arm is hinged to the second arm through a second hinge shaft, the support arm further includes a first wheel, a second wheel and a flexible member, the first wheel is coaxially disposed with the first hinge shaft and is fixedly connected to the movable chassis, the second wheel is coaxially disposed with the second hinge shaft and is fixedly connected to the second arm, and the flexible member is wound around the first wheel and the second wheel and is matched with the first wheel and the second wheel. When the transmission rod drives the first arm to rotate around the first hinge shaft, the matching angle of the flexible part and the first wheel and the second wheel can be changed, so that the first arm can rotate relative to the mobile chassis and the second arm, and the first wheel cannot rotate relative to the mobile chassis, so that the flexible part cannot transmit relative to the first wheel, the flexible part can limit the second wheel to rotate relative to the mobile chassis, further limit the second arm to rotate relative to the mobile chassis, and enable the second arm to always keep a posture vertical to the ground.

As an alternative, the supporting device comprises at least two supporting arms, and the at least two supporting arms are uniformly distributed along the circumferential direction of the supporting arms, so that the stability of supporting the moving chassis can be improved.

As an optional scheme, the driving mechanism includes a driving assembly and at least two transmission assemblies, the input ends of the transmission assemblies are connected with the driving assembly, and the output end of each transmission assembly is correspondingly connected with one of the supporting arms. Through the cooperation of setting up two at least drive assembly and drive assembly, make two at least support arms can extend or fold in step, further reduced drive assembly's quantity, reduced strutting arrangement's cost, reduced strutting arrangement's occupation space.

As an optional scheme, the driving assembly can output a rotational motion, the transmission assembly includes an intermediate transmission structure and a transmission rod, an input end of the intermediate transmission structure is connected to the driving assembly, a first end of the transmission rod is connected to an output end of the intermediate transmission structure, a second end of the transmission rod is hinged to the first arm, and the intermediate transmission structure can drive the first end of the transmission rod to move linearly. The intermediate transmission structure converts the rotary motion of the driving component into linear motion, and then the linear motion output by the intermediate transmission structure can drive the first arms to rotate through the transmission rod, so that the purpose that one driving component capable of outputting the rotary motion drives at least two first arms to rotate is achieved.

As an alternative, the intermediate transmission structure includes a lead screw and a nut, wherein the lead screw is rotatably supported on the moving chassis, the driving assembly can drive the lead screw to rotate, the nut is in threaded fit with the lead screw, and the first end of the transmission rod is hinged to the nut. The rotary motion of the driving source is converted into the linear motion of the first end of the transmission rod in a screw rod nut mode, and the structure is simple and the cost is low.

As an optional scheme, the driving assembly includes a driving source, a driving bevel gear and at least two driven bevel gears, the driving source can drive the driving bevel gear to rotate, the at least two driven bevel gears are arranged around the circumference of the driving bevel gear and are engaged with the driving bevel gear, and each driven bevel gear is in transmission connection with one of the transmission assemblies. The meshing of the bevel gears realizes that the driving source transmits power to at least two intermediate transmission structures, and the structure is simple.

As an optional scheme, the supporting device further comprises linear guide rails arranged on the movable chassis, and the first end of each transmission rod is correspondingly matched with one linear guide rail in a sliding manner, so that the accuracy of the linear driving direction of the first end of the transmission rod and the smoothness and stability of the movement are ensured.

The building equipment comprises a movable chassis and the supporting device, wherein the supporting device is arranged on the movable chassis.

As an optional scheme, the movable chassis is rectangular, the supporting device includes four supporting arms, the four supporting arms are grouped in pairs, and each group of the supporting arms is diagonally arranged. When the size of the supporting arms is constant, the maximum distance between the two supporting arms is larger in the mode that each group of supporting arms is arranged diagonally relative to other arrangement modes, and therefore better supporting stability can be obtained.

The invention has the beneficial effects that:

according to the supporting device, the driving assembly drives the first arm to rotate relative to the movable chassis and drives the second arm to extend out of (or approach) the movable chassis in the horizontal plane of the movable chassis and simultaneously descend (or ascend) in the vertical plane, so that the supporting arm is unfolded to be supported on the ground or folded and separated from the ground. The telescopic motion and the lifting motion of the supporting arm are carried out synchronously, so that the efficiency is high; and the telescopic movement and the lifting movement are driven by one driving component, so that the structure is simple, the cost is low, and the occupied space is small.

The building equipment can be stably supported during parking by arranging the supporting device, and has the advantages of high supporting action efficiency, low overall cost and small occupied space.

Drawings

FIG. 1 is a schematic structural view of a support device provided in a folded state on a mobile chassis according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a support device provided in an expanded state on a mobile chassis according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a support arm configuration provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a support device provided in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention.

In the figure:

1-moving the chassis; 11-a chassis body; 12-a steering wheel;

2-a support arm; 21-a first arm; 22-a second arm; 23-a first round; 24-a second round; 25-a flexure;

31-a support base; 32-a bearing seat;

4-a drive assembly; 41-a drive source; 42-drive bevel gear; 43-driven bevel gear;

51-a linear guide; 52-a slide block;

61-a first hinge axis; 62-a second hinge axis;

7-a transmission assembly; 71-an intermediate transmission structure; 711-nut; 712-a screw rod; 72-drive link.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used based on the orientations or positional relationships shown in the drawings for convenience of description and simplicity of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The embodiment provides a strutting arrangement and architectural equipment, is particularly useful for the construction machinery field. The construction equipment comprises a movable chassis 1, a supporting device and an executing mechanism, wherein the executing mechanism is arranged on the movable chassis 1, the movable chassis 1 can drive the executing mechanism to move to a position to be operated, the supporting device is arranged on the movable chassis 1 and can support the movable chassis 1 after the movable chassis 1 is parked, the executing mechanism is ensured to move the chassis 1 stably in the operation process, and then the operation precision of the executing mechanism is ensured.

As shown in fig. 1-3, the supporting device includes a supporting arm 2 and a driving assembly 4, wherein the supporting arm 2 includes a first arm 21 and a second arm 22, a first end of the first arm 21 is hinged to the moving chassis 1, a second end of the first arm is connected to the second arm 22, the second arm 22 is used for abutting against the ground when parking, and the driving assembly 4 can drive the first arm 21 to rotate around the first end thereof, so that the supporting arm 2 is unfolded and supported on the ground, or folded and separated from the ground.

In the supporting device of the embodiment, the driving assembly 4 drives the first arm 21 to rotate relative to the moving chassis 1, and drives the second arm 22 to descend (or ascend) in a vertical plane while extending out of (or approaching) the moving chassis 1 in a plane in which the moving chassis 1 is located, so as to realize the function that the supporting arm 2 is unfolded to support on the ground or folded and separated from the ground. The telescopic motion and the lifting motion of the supporting arm 2 are carried out synchronously, so that the efficiency is high; and the telescopic movement and the lifting movement are driven by one driving component 4, so that the structure is simple, the cost is low, and the occupied space is small. The construction equipment of this embodiment can stabilize the support during parking through setting up foretell strutting arrangement, and supports action efficiency height, and overall cost is low, occupation space is little.

In this embodiment, as shown in fig. 1, the movable chassis 1 includes a chassis body 11 and a driving wheel disposed below the chassis body 11, and the driving wheel can drive the chassis body 11 to move. Preferably, the driving wheel may be a steering wheel 12, which has a high degree of integration, making the entire mobile chassis 1 compact. Further, the supporting device further comprises a supporting seat 31, the supporting seat 31 is disposed on the chassis body 11, and the first end of the first arm 21 is hinged to the supporting seat 31. In the moving process of the moving chassis 1, as shown in fig. 1, the supporting arm 2 is in a folded state of being away from the ground, so that the moving chassis 1 can move smoothly, and after the construction equipment reaches a preset position and is parked, as shown in fig. 2, the supporting arm 2 is unfolded and supported on the ground, so that the moving chassis 1 can be stably supported.

Preferably, as shown in fig. 2 to 4, a first end of the first arm 21 is hinged to the mobile chassis 1 through a first hinge shaft 61, a second end of the first arm 21 is hinged to the second arm 22 through a second hinge shaft 62, the guiding assembly 5 includes a first wheel 23, a second wheel 24 and a flexible member 25, the first wheel 23 is coaxially arranged with the first hinge shaft 61 and is fixedly connected to the mobile chassis 1, the second wheel 24 is coaxially arranged with the second hinge shaft 62 and is fixedly connected to the second arm 22, and the flexible member 25 is wound around the first wheel 23 and the second wheel 24 and is matched with the first wheel 23 and the second wheel 24.

The first wheel 23 and the first hinge shaft 61 are coaxially arranged, the second wheel 24 and the second hinge shaft 62 are coaxially arranged, so that when the transmission rod 72 drives the first arm 21 to rotate around the first hinge shaft 61, the flexible part 25 is always in a tensioning state, and further, the effective matching relation between the flexible part 25 and the first wheel 23 and the second wheel 24 is ensured, the matching angle between the flexible part 25 and the first wheel 23 and the second wheel 24 can be changed, so that the first arm 21 can rotate relative to the mobile chassis 1 and the second arm 22, because the first wheel 23 is fixed on the mobile chassis 1, the first wheel 23 cannot rotate relative to the mobile chassis 1, the flexible part 25 cannot transmit relative to the first wheel 23, the flexible part 25 can limit the second wheel 24 to rotate relative to the mobile chassis 1, further, the second arm 22 can be limited to rotate relative to the mobile chassis 1, and the second arm 22 can always keep a posture vertical to the ground, and therefore, no matter whether the supporting arm 2 is fully extended, the second arm 22 can be stably supported on the ground, and the mobile chassis 1 can be supported at different heights. Specifically, in this embodiment, the first wheel 23 is fixedly connected to the supporting seat 31, and the first hinge shaft 61 is disposed through the first wheel 23 and is rotatably engaged with the first wheel 23. The second wheel 24 is fixed on the upper end of the second arm 22, and the second hinge shaft 62 is arranged through the second wheel 24 and is in running fit with the second wheel 24.

In this embodiment, as shown in fig. 3, the first wheel 23 and the second wheel 24 are both pulleys, and the flexible member 25 is a belt. In other embodiments, the first wheel 23 and the second wheel 24 may be both sprockets and the flexible member 25 may be a chain. The belt wheel and the belt, and the chain wheel and the chain can be selected from the existing standard parts, and the manufacturing and design cost is low.

Preferably, as shown in fig. 4, the supporting device comprises at least two supporting arms 2, and the at least two supporting arms 2 are uniformly distributed along the circumferential direction of the moving chassis 1, so that the stability of supporting the moving chassis 1 can be improved. In this embodiment, chassis body 11 is the rectangle, and strutting arrangement includes four support arms 2, and two liang of a set of four support arms 2, every support arm 2 of group are the diagonal angle setting. When the support arms 2 are dimensioned, the maximum distance between the two support arms 2 is greater in the diagonally arranged manner of each set of support arms 2 than in other arrangements, so that a better support stability can be obtained.

Preferably, as shown in fig. 4, the driving mechanism comprises a driving assembly 4 and at least two transmission assemblies 7, wherein the input ends of the transmission assemblies 7 are connected with the driving assembly 4, and the output end of each transmission assembly 7 is correspondingly connected with one supporting arm 2. Through the cooperation of setting up two at least transmission assembly 7 and drive assembly 4, make two at least support arms 2 can extend or fold in step, further reduced drive assembly 4's quantity, reduced strutting arrangement's cost, reduced strutting arrangement's occupation space.

In this embodiment, as shown in fig. 4 and 5, the driving assembly 4 can output a rotational motion, the transmission assembly 7 includes an intermediate transmission structure 71 and a transmission rod 72, an input end of the intermediate transmission structure 71 is connected to the driving assembly 4, a first end of the transmission rod 72 is connected to an output end of the intermediate transmission structure 71, a second end of the transmission rod 72 is hinged to the first arm 21, and the intermediate transmission structure 71 can drive the first end of the transmission rod 72 to move linearly. The intermediate transmission structure 71 converts the rotational motion of the driving assembly 4 into a linear motion, and then the linear motion output by the intermediate transmission structure 71 can drive the first arms 21 to rotate through the transmission rod 72, so that the driving assembly 4 capable of outputting the rotational motion can drive the at least two first arms 21 to rotate, and the spatial layout of the driving assembly 4 and the at least two supporting arms 2 is facilitated. In the present embodiment, the second end of the transmission rod 72 is hinged to the middle portion of the first arm 21, and in other embodiments, the hinge axis of the transmission rod 72 and the first arm 21 is not collinear with the first hinge axis 61.

Further, as shown in fig. 4 and 5, the intermediate transmission structure 71 further includes a screw 712 and a nut 711, wherein the screw 712 is rotatably supported on the moving chassis 1, the driving assembly 4 can drive the screw 712 to rotate, the nut 711 is in threaded fit with the screw 712, and the first end of the transmission rod 72 is hinged with the nut 711. The rotary motion of the driving source 41 is converted into the linear motion of the first end of the transmission rod 72 by the screw 712 and the nut 711, and the structure is simple and the cost is low. In this embodiment, the supporting device further includes a bearing seat 32, the bearing seat 32 is disposed on the chassis body 11, the lead screws 712 are rotatably matched with the bearing seats 32, and two ends of each lead screw 712 are supported by one bearing seat 32, so as to ensure the supporting stability of the lead screw 712.

It should be noted that, in the present embodiment, two of the four sets of support arms 2 are grouped into one set, each set of support arms 2 is diagonally disposed, the four sets of transmission assemblies 7 are correspondingly disposed, and the specification of the lead screw 712 and the length of the transmission rod 72 in each set of transmission assembly 7 are correspondingly the same, so when the driving assembly 4 outputs motion, the rotation angles of the first arms 21 are the same, and the unfolding and folding speeds of the four support arms 2 can be synchronized.

Specifically, as shown in fig. 5, the driving assembly 4 includes a driving source 41, a drive bevel gear 42, and at least two driven bevel gears 43, the driving source 41 being capable of driving the drive bevel gear 42 to rotate, the at least two driven bevel gears 43 being arranged around the circumference of the drive bevel gear 42 and engaged with the drive bevel gear 42, each driven bevel gear 43 being in driving connection with one transmission assembly. The power of one driving source 41 is divided into at least two directions to be output through the meshing fit of one driving bevel gear 42 and at least two driven bevel gears 43, and the power is respectively transmitted to at least two supporting arms 2. In this embodiment, the driving source 41 may be a speed reduction motor, and in other embodiments, the driving source 41 may be other components or assemblies capable of outputting rotational motion. The output shaft of the driving source 41 is disposed in a direction perpendicular to the ground, i.e., the rotational axis of the drive bevel gear 42 is disposed in a direction perpendicular to the ground, and correspondingly, the axis of the driven bevel gear 43 is disposed in a direction parallel to the ground.

Further, as shown in fig. 3, the supporting device further includes linear guide rails 51 disposed on the moving chassis 1, and a first end of each transmission rod 72 is correspondingly in sliding fit with one linear guide rail 51, so as to ensure that the driving assembly 4 drives the first end of the transmission rod 72 in an accurate direction and smoothly and stably. Specifically, in the present embodiment, each linear guide 51 is correspondingly disposed below one of the lead screws 712, a slider 52 is connected below the nut 711, and the slider 52 is engaged with the corresponding linear guide 51. In another embodiment, the linear guide 51 may be disposed at a side of the screw 712, and the slider 52 may be coupled to a side of the nut 711 and slidably engaged with the linear guide 51.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not intended to limit the embodiments of the present invention, and that the technical spirit of the present invention may be changed by those skilled in the art in the aspects of the specific embodiments and the application scope, and the content of the present specification should not be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A support device for supporting a moving chassis during parking, comprising:

the supporting arm comprises a first arm and a second arm, the first end of the first arm is hinged with the movable chassis, the second end of the first arm is connected with the second arm, and the second arm is used for abutting against the ground when parking;

the driving mechanism can drive the first arm to rotate around the first end of the first arm, so that the supporting arm is unfolded and supported on the ground, or is folded and separated from the ground;

the first end of first arm passes through first articulated shaft with it is articulated to remove the chassis, the second end of first arm passes through the second articulated shaft with the second arm is articulated, the support arm still includes:

the first wheel is coaxially arranged with the first hinge shaft and is fixedly connected with the movable chassis;

the second wheel is coaxially arranged with the second hinge shaft and is fixedly connected with the second arm;

and the flexible piece is wound on the first wheel and the second wheel and matched with the first wheel and the second wheel.

2. The support device of claim 1, wherein the support device comprises at least two support arms, the at least two support arms being evenly distributed along a circumference of the moving chassis.

3. The support device of claim 2, wherein the drive mechanism includes a drive assembly and at least two transmission assemblies, wherein the input ends of the transmission assemblies are connected to the drive assembly, and the output end of each transmission assembly is connected to a corresponding one of the support arms.

4. The support device of claim 3, wherein the transmission assembly includes an intermediate transmission structure and a transmission rod, an input end of the intermediate transmission structure is connected to the driving assembly, a first end of the transmission rod is connected to an output end of the intermediate transmission structure, a second end of the transmission rod is hinged to the first arm, and the intermediate transmission structure can drive the first end of the transmission rod to move along a straight line.

5. The support device of claim 4, wherein the intermediate transmission structure comprises:

the screw rod is rotatably supported on the movable chassis, and the driving assembly can drive the screw rod to rotate;

the nut is in threaded fit with the screw rod, and the first end of the transmission rod is hinged to the nut.

6. The support device of claim 4, wherein the driving assembly comprises a driving source capable of driving the drive bevel gear to rotate, a drive bevel gear, and at least two driven bevel gears arranged around the circumference of the drive bevel gear and engaged with the drive bevel gear, each driven bevel gear being in driving connection with one of the transmission assemblies.

7. The support device of claim 6, further comprising linear guides disposed on the mobile chassis, wherein the first end of each of the drive links slidably engages a corresponding one of the linear guides.

8. Construction equipment, comprising a moving chassis and a support device according to any of claims 1-7, which support device is arranged on the moving chassis.

9. The construction equipment according to claim 8, wherein said mobile chassis is rectangular and said support means comprises four said support arms, said four support arms being grouped two by two, and each of said support arms being diagonally disposed.